|
Re: 727 explosion at Milan last night....
[Re: dvw]
#2391306
10/22/17 04:16 PM
10/22/17 04:16 PM
|
Joined: Feb 2016
Posts: 200
PA
Scully
enthusiast
|
enthusiast
Joined: Feb 2016
Posts: 200
PA
|
If it has a good drum it doesn't matter if the low roller gives up the ghost or not. I've seen low rollers break with low band apply. I have also seen Super Sprag's break.
Doug The sprag can still break from the shock but the drum wont explode. I broke the sprag in my race car on the line testing at my local track because I broke an axle but still drove the car back to the pits and on to the trailer. It was just 4 days before I had to leave for the Keystone Nats. I had to overnight axles from Strange, repair the trans and set up a new rear as the axle broke at the spline and got into the carrier bearings, all while working a night job as well as my machine shop, 5 am Thurs morn I pulled out for the Keys and ran a good race but I was tired for sure.
|
|
|
Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2391351
10/22/17 06:22 PM
10/22/17 06:22 PM
|
Joined: Jan 2003
Posts: 7,480
Minnesota
Hemi_Joel
master
|
master
Joined: Jan 2003
Posts: 7,480
Minnesota
|
How much does it cost to add a billet front drum, lba valve body, and an ultra-spraig, compared to a similar build with out those safety measures?
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
|
|
|
Re: 727 explosion at Milan last night....
[Re: Hemi_Joel]
#2391356
10/22/17 06:32 PM
10/22/17 06:32 PM
|
Joined: Mar 2009
Posts: 2,459
Sydney,Australia
tex013
top fuel
|
top fuel
Joined: Mar 2009
Posts: 2,459
Sydney,Australia
|
How much does it cost to add a billet front drum, lba valve body, and an ultra-spraig, compared to a similar build with out those safety measures? quite a bit , drum is US$7 or 800 I think . Sprag around US$100 . Tex
New best ET 10.259@129.65 .
New best MPH 130.32
Finally fitted a solid cam,
stepped it up a bit more
3690lbs through the mufflers
New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm
Power by Tex's Automotive
|
|
|
Re: 727 explosion at Milan last night....
[Re: Scully]
#2391359
10/22/17 06:39 PM
10/22/17 06:39 PM
|
Joined: Jan 2003
Posts: 25,756
Rio Linda, CA
John_Kunkel
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 25,756
Rio Linda, CA
|
The 2-3 shift is all about timing to avoid overlap
In reality you can't avoid all overlap, some is necessary to prevent rpm flare up on the shift. That's why the TF will always be inferior to a trans like the TH400 that has no release/apply cycle.
The INTERNET, the MISinformation superhighway
|
|
|
Re: 727 explosion at Milan last night....
[Re: mopar dave]
#2391370
10/22/17 07:11 PM
10/22/17 07:11 PM
|
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
dartman366
I Live Here
|
I Live Here
Joined: Jan 2004
Posts: 13,247
Mt. Vernon, Ohio
|
so why would anyone pay more for the super sprag if they break too? save your money and just install a bolt in stock type then and use an aftermarket drum. Not to be a smart azz but, I was told years ago that if a human built it it WILL eventually break,, When I built my 727 for the 512 I took all the knowledge that I had learned and applied it, Super sprag and a steel drum and Copes awesome new transbrke VB and a complete re-hash of everything inside the case. 
Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.
|
|
|
Re: 727 explosion at Milan last night....
[Re: pittsburghracer]
#2391388
10/22/17 07:30 PM
10/22/17 07:30 PM
|
Joined: Apr 2003
Posts: 3,509
Tulsa, Oklahoma
340Cuda
master
|
master
Joined: Apr 2003
Posts: 3,509
Tulsa, Oklahoma
|
Did anyone ever check to see if ATI makes a 727 aftermarket case. My ATI
Case is very heavy duty and comes with a steel safety liner that slides down into the pump Somebody could make them but I have never seen an aftermarket 727 or 904 case. I would sure like a SFI approved 904 case. Bill
|
|
|
Re: 727 explosion at Milan last night....
[Re: rickraw]
#2391476
10/22/17 10:13 PM
10/22/17 10:13 PM
|
Joined: Oct 2006
Posts: 596
Mass.
80fbody
mopar
|
mopar
Joined: Oct 2006
Posts: 596
Mass.
|
There was a pic posted on here yrs ago. It got pretty tore up but, I don't thing the driver go hurt. With a billet drum, shield & smart driving worries should be over. Ya, a billet drum is gonna be on my list when I go trans brake in the near future hopefully.
|
|
|
Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2391630
10/23/17 06:10 AM
10/23/17 06:10 AM
|
Joined: May 2008
Posts: 5,399
Aurora, Colorado
451Mopar
master
|
master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
|
It can get expensive to upgrade the 727. I used the A&A Ultimate sprag ($195), Billet Steel front drum ($550), Billet aluminum rear drum ($250) Note this was mostly for clearance with the billet front drum. Billet Steel 4-pinion front planetary gear ($499) The splines in my stock aluminum gear were cracked and falling out. CRT reverse manual valve body with low band apply ($275). That is $1769 to start with. A modified race pump with max lug gears ($315), lightened sun shell ($165), Deep aluminum trans pan ($175), billet front servo ($83.00), 4.2:1 band lever ($25), Billet strut ($19), billet strut anchor ($34), Billet low reverse servo ($48), billet accumulator (), rebuild kit(), alto read eagle clutches and kolene steels(), vent relocation (), Bands (), more stuff I forget...
|
|
|
Re: 727 explosion at Milan last night....
[Re: 451Mopar]
#2391633
10/23/17 07:16 AM
10/23/17 07:16 AM
|
Joined: Mar 2006
Posts: 9,827
MI, usa
dvw
master
|
master
Joined: Mar 2006
Posts: 9,827
MI, usa
|
It can get expensive to upgrade the 727. I used the A&A Ultimate sprag ($195), Billet Steel front drum ($550), Billet aluminum rear drum ($250) Note this was mostly for clearance with the billet front drum. Billet Steel 4-pinion front planetary gear ($499) The splines in my stock aluminum gear were cracked and falling out. CRT reverse manual valve body with low band apply ($275). That is $1769 to start with. A modified race pump with max lug gears ($315), lightened sun shell ($165), Deep aluminum trans pan ($175), billet front servo ($83.00), 4.2:1 band lever ($25), Billet strut ($19), billet strut anchor ($34), Billet low reverse servo ($48), billet accumulator (), rebuild kit(), alto read eagle clutches and kolene steels(), vent relocation (), Bands (), more stuff I forget... A good drum and a decent valve body will last forever in a low 10 second car with stock components. My 9.0 car runs stock 3 pin planet carriers, pump gears, shafts, and servos, Factory 518 truck pan, 3.8 stock lever. You can reinforce the stock strut with 10 minutes work, same with modifying the pump feed, relocating the vent. Rabestoes tan clutches in my low 10 second car went over 1000 passes. In fact the only non stock components were a Turbo Action non/LBA valve body, good drum, deep truck pan. Doug
|
|
|
Re: 727 explosion at Milan last night....
[Re: J_BODY]
#2391717
10/23/17 11:54 AM
10/23/17 11:54 AM
|
Joined: Jan 2003
Posts: 1,237
North Central, Indiana
Roughbird72
pro stock
|
pro stock
Joined: Jan 2003
Posts: 1,237
North Central, Indiana
|
Doug pretty much nailed it.... got a street/strip ride, put the drum in. I did that 2 years go, billet drums are cheap compared to the loss of a foot.
72 Plymouth Roadrunner 11.08@123.25
|
|
|
Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2391718
10/23/17 11:58 AM
10/23/17 11:58 AM
|
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
|
Doesn't look like the blanket did a very good job of containing it w/ the size of the hole in the floor.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: 727 explosion at Milan last night....
[Re: an8sec70cuda]
#2391726
10/23/17 12:19 PM
10/23/17 12:19 PM
|
Joined: Mar 2006
Posts: 9,827
MI, usa
dvw
master
|
master
Joined: Mar 2006
Posts: 9,827
MI, usa
|
Doesn't look like the blanket did a very good job of containing it w/ the size of the hole in the floor. My bet is that straps that go to the bell housing bolts were too long or not installed allowing the blanket to slide rearward. Doug
|
|
|
Re: 727 explosion at Milan last night....
[Re: dvw]
#2391736
10/23/17 12:32 PM
10/23/17 12:32 PM
|
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
|
Doesn't look like the blanket did a very good job of containing it w/ the size of the hole in the floor. My bet is that straps that go to the bell housing bolts were too long or not installed allowing the blanket to slide rearward. Doug Probably so. Or if it was a Lofgren Blanket, which only has 2 straps that wrap around/under the trans, the straps were either damaged or the transmission broke apart so there was nothing for it to hold onto.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
|
|
|
Re: 727 explosion at Milan last night....
[Re: an8sec70cuda]
#2391740
10/23/17 12:39 PM
10/23/17 12:39 PM
|
Joined: Feb 2003
Posts: 1,942
Metro Detroit
OUTLAWD
top fuel
|
top fuel
Joined: Feb 2003
Posts: 1,942
Metro Detroit
|
Probably so. Or if it was a Lofgren Blanket, which only has 2 straps that wrap around/under the trans, the straps were either damaged or the transmission broke apart so there was nothing for it to hold onto.
^^ This, I didn't get a pic, but when they jacked the car up, the blanket emptied out like a coin purse. I will be upgrading my drum this winter and swapping to a LBA VB
Last edited by OUTLAWD; 10/23/17 04:22 PM.
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts
66 Belv. II - just a streetcar
88 Mustang - turbo LS beater
|
|
|
Re: 727 explosion at Milan last night....
[Re: dustergirl340]
#2391835
10/23/17 03:04 PM
10/23/17 03:04 PM
|
Joined: Jan 2003
Posts: 7,480
Minnesota
Hemi_Joel
master
|
master
Joined: Jan 2003
Posts: 7,480
Minnesota
|
 Do you suppose if this guy could go back in time and spend $1200 to make his tranny explosion proof, would he do it?
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
|
|
|
|
|
